Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
for loop vs. lodash foreach vs. array foreach
(version: 0)
Comparing performance of:
for vs lodash range foreach vs array foreach
Created:
5 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/lodash.js"></script>
Tests:
for
var x = ['test', 'this', 'the', 'other']; var y = ''; for (var i = 0; i < 10000; i++) { y += '<div>' + x[i] + '</div>'; }
lodash range foreach
var x = ['test', 'this', 'the', 'other']; var y = ''; _.forEach(x, function(v) { y += '<div>' + v + '</div>'; });
array foreach
var x = ['test', 'this', 'the', 'other']; var y = ''; x.forEach(function (v) { y += '<div>' + v + '</div>'; });
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
Fork
Test case name
Result
for
lodash range foreach
array foreach
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks. **Benchmark Overview** The provided benchmark compares three different approaches for iterating over an array: traditional `for` loop, `lodash.forEach`, and native `array.forEach`. **Options Compared** 1. **Traditional For Loop**: This approach uses a manual index variable (`i`) to iterate over the array elements. 2. **Lodash `forEach`**: This method uses the `_` alias for Lodash's utility library and iterates over the array elements using the `forEach` function. 3. **Native `array.forEach`**: This is a built-in method in modern JavaScript that allows iterating over an array without manually managing indices. **Pros and Cons** 1. **Traditional For Loop**: * Pros: Simple, familiar syntax; no additional library dependencies. * Cons: Manual index management can be error-prone and slow due to the overhead of incrementing and decrementing indices. 2. **Lodash `forEach`**: * Pros: Convenient syntax; Lodash provides other utility functions that might be useful in specific situations. * Cons: Requires an additional library dependency (Lodash); some developers might not find it intuitive or familiar. 3. **Native `array.forEach`**: * Pros: Efficient and concise syntax; no additional library dependencies required. * Cons: Requires modern JavaScript support (ES6+); older browsers might not be compatible. **Library and Syntax Explanation** 1. **Lodash**: A popular utility library for JavaScript that provides a wide range of functions for tasks like string manipulation, array and object manipulation, and more. In this benchmark, Lodash's `forEach` function is used to iterate over the array elements. 2. **Native `array.forEach` syntax**: This method has been part of modern JavaScript since ES6 and allows iterating over an array using a single line of code: `array.forEach((element) => { ... });`. It is implemented in V8 (the JavaScript engine used by Google Chrome) to be efficient. **Additional Considerations** 1. **Performance overhead**: Manual index management in the traditional `for` loop can lead to slower performance due to the overhead of incrementing and decrementing indices. 2. **Code readability and maintainability**: The native `array.forEach` approach is generally more concise and easier to read than the traditional `for` loop, while Lodash's `forEach` provides a convenient syntax. **Alternatives** If you're interested in exploring alternative approaches, consider: 1. **Modern JavaScript alternatives**: Look into newer JavaScript features like `for...of`, which allows iterating over arrays and other iterable objects using a single loop. 2. **Other array iteration methods**: Some browsers support additional array iteration methods, such as `array.map()` or `array.reduce()`. These might be useful in specific situations. In summary, the benchmark compares three different approaches for iterating over an array: traditional `for` loop, `lodash.forEach`, and native `array.forEach`. The choice of approach depends on personal preference, performance requirements, and the specific use case.
Related benchmarks:
lodash.each vs Object.forEach
Lodash _.forEach vs Object forEach
for loop vs. lodash range foreach vs. jquery each
native for loop vs Array.prototype.forEach vs lodash forEach
lodash.foreach vs for-of vs array.forEach
Comments
Confirm delete:
Do you really want to delete benchmark?